import java.util.Scanner;

public class Main {
	
	public static void main(String[] args){
		Scanner s = new Scanner(System.in);
		String str = s.next();
		s.close();
		long n = (long)Integer.parseInt(str);
		int count = 0;
		for(long i= 1;i<=n;i++){
			if(n%i==0){
				count++;
			}
		}
			
		System.out.println(count);
		
	}

}